I’m late to the conversation, but I would have to agree with most. Below a /24 route advertisement shouldn’t happen.
I have a /24 that I would love to advertise as 2 /25’s, but the affects on everyone else is just too much. I take full routes from 4 providers, and I certainly don’t want to add over 100K. Carriers and enterprises have to pay a lot for our edge routers doing bgp and most don’t want to upgrade. We would benefit from advertising /25’s but it hurt’s more than it helps. I’m in the alarm industry and they still haven’t started adopting IPv6. If we allow /25 subnets, some industries will never change. In a sense, we have to “force” them to change. Mike From: NANOG <nanog-bounces+mbolton=holmeselectricsecurity....@nanog.org> On Behalf Of Mike Hammett Sent: Thursday, January 26, 2023 8:52 AM To: Chris <ch...@noskillz.com> Cc: nanog@nanog.org Subject: Re: Smaller than a /24 for BGP? CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Implementing v6 is important, but unrelated to allowing smaller v4 prefixes. Not taking a position either way if smaller v4 prefixes is good or bad. ----- Mike Hammett Intelligent Computing Solutions<http://www.ics-il.com/> [http://www.ics-il.com/images/fbicon.png]<https://www.facebook.com/ICSIL>[http://www.ics-il.com/images/googleicon.png]<https://plus.google.com/+IntelligentComputingSolutionsDeKalb>[http://www.ics-il.com/images/linkedinicon.png]<https://www.linkedin.com/company/intelligent-computing-solutions>[http://www.ics-il.com/images/twittericon.png]<https://twitter.com/ICSIL> Midwest Internet Exchange<http://www.midwest-ix.com/> [http://www.ics-il.com/images/fbicon.png]<https://www.facebook.com/mdwestix>[http://www.ics-il.com/images/linkedinicon.png]<https://www.linkedin.com/company/midwest-internet-exchange>[http://www.ics-il.com/images/twittericon.png]<https://twitter.com/mdwestix> The Brothers WISP<http://www.thebrotherswisp.com/> [http://www.ics-il.com/images/fbicon.png]<https://www.facebook.com/thebrotherswisp>[http://www.ics-il.com/images/youtubeicon.png]<https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> ________________________________ From: "Chris" <ch...@noskillz.com<mailto:ch...@noskillz.com>> To: "Justin Wilson (Lists)" <li...@mtin.net<mailto:li...@mtin.net>> Cc: nanog@nanog.org<mailto:nanog@nanog.org> Sent: Wednesday, January 25, 2023 2:24:29 PM Subject: Re: Smaller than a /24 for BGP? I would suggest that this is trying to solve the wrong problem. To me this is pressure to migrate to v6, not alter routing rules. Kind Regards, Chris Haun On Tue, Jan 24, 2023 at 12:21 PM Justin Wilson (Lists) <li...@mtin.net<mailto:li...@mtin.net>> wrote: Have there been talks about the best practices to accept things smaller than a /24? I qm seeing more and more scenarios where folks need to participate in BGP but they do not need a full /24 of space. Seems wasteful. I know this would bloat the routing table immensely. I know of several folks who could split their /24 into /25s across a few regions and still have plenty of IP space. Justin Wilson j...@j2sw.com<mailto:j...@j2sw.com> — https://blog.j2sw.com - Podcast and Blog https://www.fd-ix.com IMPORTANT NOTICE: This e-mail message is intended to be received only by persons entitled to receive the confidential information it may contain. E-mail messages to clients of Holmes Security Systems may contain information that is confidential and legally privileged. Please do not read, copy, forward, or store this message unless you are an intended recipient of it. If you have received this message in error, please forward it to the sender and delete it completely from your computer system.
